Inorganic Chemicals Industry >
Study on preparation and photocatalytic properties of bagasse carbon aerogels loaded with zinc oxide nanoparticles
Received date: 2024-01-17
Online published: 2024-09-26
A series of bagasse cellulose⁃based carbon aerogel⁃loaded zinc oxide nanocomposite（BCCA/ZnO） catalysts were successfully prepared by immersion⁃calcination method for the degradation of Methyl Orange（MO） dye.The prepared BCCA/ZnO was characterised by field emission scanning electron microscopy（FE-SEM），Fourier transform infrared spectroscopy（FT-IR），X-ray diffraction（XRD），X-ray photoelectron spectroscopy（XPS），UV-Vis diffuse reflection（UV-visible DRS） and specific surface area，etc.The study revealed that BCCA possessed a three⁃dimensional porous network structure.After being soaked in a zinc acetate solution and undergoing high⁃temperature carbonisation，spherical ZnO nanoparticles were generated in situ on the surface of BCCA.Excellent catalytic activity of BCCA/ZnO was demonstrated by simulating the UV environment，in which BCCA/ZnO-3 could degrade the MO solution in 80 min for 99% under the optimal conditions of pH=11.After 4 repeated use，the degradation efficiency of BCCA/ZnO-3 for MO was 99% in 80 min，which still showed excellent catalytic effect，indicating that it had good stability and reusability.While，the photocatalytic degradation mechanism was investigated.It was found that ·OH played a major role，h+ played a minor role，and ·O2- did not play a role.
Key words： photocatalysis; ZnO; carbon aerogel; bagasse cellulose
ZHANG Guoqiang , RONG Xilin , XIAO Zhenfang , XUE Ziran , CHENG Hao , FENG Jun , LIU Quan , LU Yao , HUANG Wenyi . Study on preparation and photocatalytic properties of bagasse carbon aerogels loaded with zinc oxide nanoparticles[J]. Inorganic Chemicals Industry, 2024 , 56(8) : 131 -138 . DOI: 10.19964/j.issn.1006-4990.2024-0032
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